s390/sclp: remove orphaned sclp_set_columns and sclp_set_htab

sclp_set_columns and sclp_set_htab are leftovers since commit 095761d2
("[S390] sclp_tty: remove ioctl interface."), remove them as a dead code.
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

drivers/s390/char/sclp_rw.c

@@ -336,24 +336,6 @@ sclp_chars_in_buffer(struct sclp_buffer *buffer)
 	return count;
 }
 
-/*
- * sets or provides some values that influence the drivers behaviour
- */
-void
-sclp_set_columns(struct sclp_buffer *buffer, unsigned short columns)
-{
-	buffer->columns = columns;
-	if (buffer->current_line != NULL &&
-	    buffer->current_length > buffer->columns)
-		sclp_finalize_mto(buffer);
-}
-
-void
-sclp_set_htab(struct sclp_buffer *buffer, unsigned short htab)
-{
-	buffer->htab = htab;
-}
-
 /*
  * called by sclp_console_init and/or sclp_tty_init
  */

drivers/s390/char/sclp_rw.h

@@ -86,8 +86,6 @@ void *sclp_unmake_buffer(struct sclp_buffer *);
 int sclp_buffer_space(struct sclp_buffer *);
 int sclp_write(struct sclp_buffer *buffer, const unsigned char *, int);
 int sclp_emit_buffer(struct sclp_buffer *,void (*)(struct sclp_buffer *,int));
-void sclp_set_columns(struct sclp_buffer *, unsigned short);
-void sclp_set_htab(struct sclp_buffer *, unsigned short);
 int sclp_chars_in_buffer(struct sclp_buffer *);
 
 #ifdef CONFIG_SCLP_CONSOLE